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(2-imidazolin-2-yl) fused heteropyridine compounds, intermediates for the preparation of and use of said compounds as herbicidal agents

US 5,510,319 A · Assignee: American Cyanamid Company · Inventors: Cross; Barrington et al.

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Why it's free to use

  • Filed September 20, 1993 and granted April 23, 1996. A patent filed before June 8, 1995 lasts 17 years from grant or 20 from filing, whichever is longer, so its term ended September 20, 2013.
  • Any extension is capped at five years, so it can't still be in force.
  • We haven't checked its US family, and a later related patent could still be in force. We check US rights only.
FiledSeptember 20, 1993
GrantedApril 23, 1996
Term endedSeptember 20, 2013
Application number08/123827
Classification (CPC)C07D497/04 +2 more
Length82 pages

Timeline

Timeline From USPTO dates

1994199619982000200220042006200820102012Application filedSep 20, 1993Patent grantedApril 23, 1996Term endedSep 20, 2013

Sources & verification

Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

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